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LTE: How an source eNodeB come to know about "TAI" of target eNodeB ?

+2 votes

In the handover required message, there is an IE target TAI. How source eNodeB came to know TAI of target eNodeB ? Is it configurable parameter or UE report as part of handover or something else.

posted Mar 20, 2014 by Vimal Kumar Mishra

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2 Answers

+1 vote

All the time UE makes a measurements
This is to trigger Handover to different TA or to Inter-RAT Handover or going few levels down to to monitor if they dont have to change the transmitting power.
Many measurements.

I'm not the radio person, but I'm sure one of the logical channels provides the information on what neighboring eNBs are serving.
Information like PLMN-ID, TAC/TAI and probably many many more.

During the never-ending measurements UE is aware of neighboring cells, their GCI and TAI/TAC.

answer Mar 20, 2014 by Bart Barton
0 votes

Please check "MeasResultEUTRA" IE. It has tracking area code of target eNodeB.

answer Mar 20, 2014 by Harshita
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